CN112309806A - X-ray tube and liquid metal sliding bearing - Google Patents
X-ray tube and liquid metal sliding bearing Download PDFInfo
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- CN112309806A CN112309806A CN202011097286.1A CN202011097286A CN112309806A CN 112309806 A CN112309806 A CN 112309806A CN 202011097286 A CN202011097286 A CN 202011097286A CN 112309806 A CN112309806 A CN 112309806A
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- ray tube
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- 229910001338 liquidmetal Inorganic materials 0.000 title claims abstract description 97
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 claims description 10
- 230000002265 prevention Effects 0.000 claims description 10
- 230000000903 blocking effect Effects 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 description 9
- 238000003745 diagnosis Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 238000012544 monitoring process Methods 0.000 description 6
- 230000014509 gene expression Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J35/00—X-ray tubes
- H01J35/02—Details
- H01J35/04—Electrodes ; Mutual position thereof; Constructional adaptations therefor
- H01J35/08—Anodes; Anti cathodes
- H01J35/10—Rotary anodes; Arrangements for rotating anodes; Cooling rotary anodes
- H01J35/101—Arrangements for rotating anodes, e.g. supporting means, means for greasing, means for sealing the axle or means for shielding or protecting the driving
- H01J35/1017—Bearings for rotating anodes
- H01J35/104—Fluid bearings
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/04—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point
- G01M3/16—Investigating fluid-tightness of structures by using fluid or vacuum by detecting the presence of fluid at the leakage point using electric detection means
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Apparatus For Radiation Diagnosis (AREA)
- X-Ray Techniques (AREA)
Abstract
The application discloses an X-ray tube and a liquid metal sliding bearing. Wherein, X-ray tube includes: the anode target disc (10) and set up in the rear side of anode target disc (10) and with the liquid metal slide bearing (20) of anode target disc (10) connection, wherein liquid metal slide bearing (20) include rotatory core (210) and can rotate relative to rotatory core (210) rotating member (220), be provided with at least one leak protection structure (230) that are used for collecting the liquid metal that leaks on rotatory core (210) and/or rotating member (220), and rotatory anode target disc still includes: at least two wires (240), wherein one end of the wires (240) is arranged inside the leakage-proof structure (230), and the other end of the wires (240) extends to the outside of the rotary anode target disk.
Description
Technical Field
The present application relates to the field of X-ray tube technology, and more particularly, to an X-ray tube and a liquid metal sliding bearing.
Background
With the development of modern medical technology and the improvement of medical diagnosis requirements, higher requirements are put forward on the performance of the medical X-ray tube. The bearing is used as a key part in the bulb tube and plays a crucial role in improving the performance of the X-ray tube. Under the same target disc structure, the X-ray tube supported by the liquid metal sliding bearing can bear higher frame rotating speed, larger power capacity and higher imaging quality than the traditional ball bearing. Liquid metal bearings have evolved into a common form of support for high-end, large thermal capacity X-ray tubes.
Liquid metal plain bearings essentially comprise a rotating assembly, a stator part, wherein liquid metal is filled as a lubricating medium in the gap between these two parts. As the liquid metal is communicated with the vacuum space inside the X-ray tube, along with the increase of the service time of the bearing, the liquid metal lubricant inevitably leaks into the vacuum space inside the bulb tube, which not only can damage the pressure resistance of the X-ray tube, but also directly influences the safe operation of the CT complete machine.
At present, a liquid metal bearing X-ray tube product does not have the function of monitoring the leakage condition of liquid metal in a bearing, and cannot prompt and early warn equipment users when the liquid metal leaks to a vacuum space in the tube (before equipment failure is about to occur). Not only seriously threatens the safe use of the CT device, but also the sudden failure can influence the diagnosis and treatment of the patient.
Aiming at the technical problems that the existing liquid metal bearing X-ray tube in the prior art does not monitor the leakage condition of liquid metal in the bearing, threatens the safe use of CT equipment and further influences the diagnosis and treatment of patients, an effective solution is not provided at present.
Disclosure of Invention
The utility model provides an X-ray tube and liquid metal slide bearing to at least, solve the current liquid metal bearing X-ray tube that exists among the prior art and do not possess the leakage condition of monitoring the inside liquid metal of bearing, threaten CT equipment's safe handling, thereby influence the technical problem of patient's diagnosis and treatment.
According to an aspect of the present application, there is provided a rotary anode target disk comprising: the anode target disc and set up in the rear side of anode target disc and the liquid metal slide bearing who is connected with the anode target disc, wherein liquid metal slide bearing includes rotatory core and can carry out the rotating member that rotates for rotatory core, is provided with at least one on rotatory core and/or the rotating member and is used for collecting the liquid metal's that leaks leak prevention structure to rotatory anode target disc still includes: and one end of each lead is arranged in the anti-leakage structure, and the other end of each lead extends to the outside of the rotary anode target disc.
According to another aspect of the present application, there is provided a liquid metal sliding bearing including a rotary core and a rotary member rotatable with respect to the rotary core, the rotary core and/or the rotary member being provided thereon with at least one leakage preventing structure for collecting leaked liquid metal, and the liquid metal sliding bearing further including: and one end of each wire is arranged in the anti-leakage structure, and the other end of each wire is led out to the outside of the rotary anode target disc.
According to another aspect of the present application, there is provided an X-ray tube comprising: the above rotary anode target disk.
Thus, according to the rotary anode target disk provided in the embodiment of the present application, in order to prevent the liquid metal between the rotary core and the rotary member from leaking into the vacuum space of the X-ray tube, a technician may provide a leakage prevention structure for storing the leaked liquid metal in the liquid metal sliding bearing. The leaked liquid metal is collected by the leakage preventing structure so as to avoid leakage into the vacuum space of the X-ray tube. Further, in order to detect the leakage condition of liquid metal in the rotary anode target disc, this application installs two piece at least wires in the rotary anode target disc, and wherein the one end of wire sets up inside the anti-leakage structure to and the other end of wire extends to the outside of rotary anode target disc. In the initial state, since there is no liquid metal leakage, the two wires are not conducted by measuring the resistance (conduction characteristic) of the two wires outside the bulb. As the service time of the X-ray tube increases, when liquid metal leaks into the leakage-proof structure and accumulates to touch the two conducting wires, the conduction of the two conducting wires can be found by measuring outside the bulb tube. In the use process of the X-ray tube, the technical effects of synchronously monitoring the liquid metal leakage condition inside the liquid metal sliding bearing and timely finding faults can be achieved by measuring the conduction characteristic of the lead in real time. And further, the technical problem that the existing liquid metal bearing X-ray tube in the prior art does not monitor the leakage condition of the liquid metal in the bearing, threatens the safe use of CT equipment and further influences the diagnosis and treatment of patients is solved.
The above and other objects, advantages and features of the present application will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the present application will be described in detail hereinafter by way of illustration and not limitation with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
fig. 1 is a schematic view of an X-ray tube according to a first aspect of an embodiment of the present application;
FIG. 2 is a schematic view of the liquid metal sliding bearing shown in FIG. 1;
FIG. 3 is another schematic view of the liquid metal sliding bearing shown in FIG. 1; and
fig. 4 is a schematic view of the lead shown in fig. 1.
Detailed Description
It should be noted that, in the present disclosure, the embodiments and features of the embodiments may be combined with each other without conflict. The present disclosure will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
In order to make the technical solutions of the present disclosure better understood by those skilled in the art, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are only some embodiments of the present disclosure, not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.
It should be noted that the terms "first," "second," and the like in the description and claims of the present disclosure and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances for describing the embodiments of the disclosure herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
Fig. 1 is a schematic view of an X-ray tube according to a first aspect of an embodiment of the present application. Referring to fig. 1, an X-ray tube includes: an anode target disk 10 and a liquid metal sliding bearing 20 disposed at the rear side of the anode target disk 10 and connected to the anode target disk 10, wherein the liquid metal sliding bearing 20 includes a rotary core 210 and a rotary member 220 capable of rotating relative to the rotary core 210, at least one leakage-preventing structure 230 for collecting leaked liquid metal is disposed on the rotary core 210 and/or the rotary member 220, and the rotary anode target disk further includes: at least two wires 240, wherein one end of the wire 240 is disposed inside the leakage-proof structure 230, and the other end of the wire 240 extends to the outside of the rotary anode target disk.
As described in the background art, at present, a liquid metal X-ray tube product does not have a function of monitoring a liquid metal leakage condition inside a bearing, and cannot prompt and warn users of equipment when the liquid metal leaks into a vacuum space inside the tube (i.e., before equipment failure is caused). Not only seriously threatens the safe use of the CT device, but also the sudden failure can influence the diagnosis and treatment of the patient.
In view of this, according to the X-ray tube (for example, a rotary anode X-ray tube) provided in the embodiment of the present application, in order to prevent the liquid metal between the rotary core 210 and the rotary member 220 from leaking into the vacuum space of the X-ray tube, a person skilled in the relevant art may provide a leakage prevention structure 230 for storing the leaked liquid metal in the liquid metal sliding bearing 20. The leaked liquid metal is collected by the leakage prevention structure 230 so as to avoid leakage into the vacuum space of the X-ray tube. Further, in order to detect the leakage of the liquid metal in the rotary anode target disk, at least two wires 240 are installed in the rotary anode target disk, wherein one end of the wire 240 is disposed inside the leakage-proof structure 230, and the other end of the wire 240 extends to the outside of the rotary anode target disk. In the initial state, since there is no liquid metal leakage, the resistance (conduction characteristic) of two wires is measured outside the bulb (outside the rotary anode target), and the two wires are not conducted. As the bulb ages, when liquid metal leaks into the leak-proof structure 230 and accumulates to hit the two wires 240, the two wires 240 can be found to be conductive when measured outside the X-ray tube. In the use process of the X-ray tube, the technical effects of synchronously monitoring the liquid metal leakage condition inside the liquid metal sliding bearing 20 and timely finding faults can be achieved by measuring the conducting characteristic of the conducting wire in real time. And further, the technical problem that the existing liquid metal X-ray tube in the prior art does not monitor the leakage condition of the liquid metal in the bearing, threatens the safe use of CT equipment and further influences the diagnosis and treatment of patients is solved.
Further, by adjusting the depth of insertion of the lead 240 into the containment structure 230, the depth of the leaking liquid metal that accumulates within the containment structure 230 can be determined. In addition, two or more wires 240 are uniformly distributed in the anti-leakage structure 230 along the circumference, and the resistance (conduction characteristic) between different wires 240 is measured, so that the distribution angle of the leaked liquid metal in the anti-leakage structure 230 along the circumference can be judged. Accordingly, the leakage condition of the liquid metal in the leakage prevention structure 230 can be judged, and the user of the device is prompted to replace the new X-ray tube in time, so that the occurrence of sudden faults of the liquid metal X-ray tube and the whole machine caused by the leakage of the liquid metal is avoided.
Alternatively, as shown in fig. 2, the rotary core 210 is provided inside with a cavity 211, a rear end of the cavity 211 communicates with the outside of the rotary anode target disk, and the rotary core 210 is provided with a through hole 212 communicating the inner space of the leakage preventing structure 230 with the cavity 211, and wherein the other end of the wire 240 extends to the outside of the rotary anode target disk via the through hole 212 and the cavity 211. Since one end of the inner cavity 211 of the rotary core 210 is connected to the outside air of the rotary anode target disk, one end of the wire 240 is placed in the leakage preventing structure 240, and the other end of the wire 240 is connected to the outside of the rotary anode target disk through the cavity 211 through the through hole 212 on the rotary core 210. Therefore, the conductivity of the other end of the measuring wire 240 can be measured outside the rotating anode target disk, and the technical effect of accurately determining the leakage amount of the leaked liquid metal stored in the leakage-preventing structure 230 can be achieved.
Alternatively, referring to fig. 2, the leakage preventing structure 230 includes a liquid blocking ring 213 disposed on the rotary core 210, and the liquid blocking ring 213 includes a connecting portion 2131 connected to the rotary core 210 and an extending portion 2132 extending forward from the connecting portion 2131, wherein the extending portion 2132 is provided with a first annular groove 21321 toward an inner surface of the rotary core 210. The leaked liquid metal is collected by the liquid blocking ring 213 provided on the rotary core 210, thereby acting as a leakage preventing structure 230 for preventing the leakage of the liquid metal. The technical effect of preventing the liquid metal from leaking into the vacuum space of the CT bulb tube and causing the damage of the CT bulb tube is achieved.
Alternatively, as shown with reference to fig. 2, one end of the lead 240 extends inside the first annular groove 21321 and is not connected to the first annular groove 21321. Therefore, one end of the lead 240 is placed in the groove 21321, whether the lead is conducted or not can be measured from the other end of the lead 240, and the technical effect of determining the leakage amount of the liquid metal in the groove 21321 is achieved. Additionally, the depth of the leads 240 within the first annular recess 21321 may be set to monitor the amount of liquid metal leaking into the first annular recess 21321. So that the amount of liquid metal leaking in the recess 21321 can be accurately monitored. And then can change or maintain the X-ray tube in time, improve the security of equipment use.
Alternatively, referring to fig. 2, the rotating member 220 comprises a rotating flange 221, the rotating flange 221 comprising a first aperture 2211 and a second aperture 2212, wherein the outer diameter of the second aperture 2212 is smaller than the outer diameter of the first aperture 2211; and the extension portion 2132 extends to the end face 22111 where the first aperture portion 2211 is connected to the second aperture portion 2212, the extension portion 2132 is not connected to the end face 22111, one side of the extension portion 2132 close to the rotary core 210 abuts against the outer surface of the second aperture portion 2212, and the second aperture portion 2212 is not connected to the connecting portion 2131. Therefore, the liquid blocking ring 213 and the rotary flange 221 are configured and used, so that the liquid metal leaked from the liquid metal sliding bearing can be better collected, and the liquid metal is prevented from leaking into the vacuum space of the CT bulb tube to cause the damage of the CT bulb tube.
Alternatively, referring to fig. 3, the rotating member 220 includes a rotating flange 221, and the leakage preventing structure 230 further includes at least one second annular groove 2213 provided at an inner surface of the rotating flange 221 facing the rotating core 210. Thus, leaked liquid metal may be collected by the at least one second annular recess 2213 in a state where the rotary anode target disk is in operation. The liquid metal is prevented from leaking into the vacuum space of the CT bulb tube, so that the CT bulb tube is prevented from being damaged.
In addition, a plurality of second annular grooves 2213 for collecting leaked liquid metal may be provided on an inner surface of one side of the rotary flange 210 facing the rotary core 210.
Alternatively, as shown with reference to fig. 3, one end of the wire 240 extends inside the second annular groove 2213 and is not connected with the second annular groove 2213. Additionally, the depth of the wire 240 within the second annular recess 22131 may also be set to monitor the amount of liquid metal leaking into the second annular recess 2213. So that the amount of liquid metal leaking in the recess 21321 can be accurately monitored. And then can change or maintain the X-ray tube in time, improve the security of equipment use.
Further, the leakage preventing structure 230 is not limited to the liquid blocking ring 213 provided on the rotary core and the second annular groove 2213 provided on the rotary flange 221. For example, the containment structure 230 can also be provided on the rotating housing 222 or other containment structure 230 on the rotating core 210 that collects leakage.
Optionally, as shown in fig. 4, the outer surface of the wire 240 is provided with an insulating layer 241. Therefore, the conducting wire 240 is wrapped by an insulating layer, the whole conducting wire 240 is insulated from all parts of the bulb, and the vacuum inside the bulb is ensured at the joint.
Further, the rotary member 220 further includes a rotary housing 222, and the rotary housing 222 is fitted over the rotary core 210 from the front side of the rotary core 210 and is connected to the rotary flange 221.
Further, a second aspect of the present embodiment provides a liquid metal sliding bearing 20 including: the rotary core 210 and the rotary member 220 capable of rotating relative to the rotary core 210, the rotary core 210 and/or the rotary member 220 being provided with at least one leakage-preventing structure 230 for collecting leaked liquid metal, further comprising: at least two wires 240, wherein one end of the wire 240 is disposed inside the leakage-proof structure 230, and the other end of the wire 240 is led out to the outside of the X-ray tube.
In particular, reference is made to the description of the liquid metal plain bearing 20 in relation to the first aspect of the embodiment of the present application, which is not described in detail here.
Thus, according to the rotary anode target disk provided in the embodiment of the present application, in order to prevent the liquid metal between the rotary core 210 and the rotary member 220 from leaking into the vacuum space of the CT bulb, a technician may provide a leakage-preventing structure 230 for storing the leaked liquid metal in the liquid metal sliding bearing 20. The leaked liquid metal is collected by the leakage prevention structure 230 so as to avoid leakage into the vacuum space of the CT bulb. Further, in order to detect the leakage of the liquid metal in the rotary anode target disk, at least two wires 240 are installed in the rotary anode target disk, wherein one end of the wire 240 is disposed inside the leakage-proof structure 230, and the other end of the wire 240 extends to the outside of the rotary anode target disk. In the initial state, since there is no liquid metal leakage, the two wires are not conducted by measuring the resistance (conduction characteristic) of the two wires outside the bulb. As the bulb ages, when liquid metal leaks into the leak-proof structure 230 and accumulates to hit the two wires 240, the two wires 240 can be found to be conductive when measured outside the bulb. In the use process of the X-ray tube, the technical effects of synchronously monitoring the liquid metal leakage condition inside the liquid metal sliding bearing 20 and timely finding faults can be achieved by measuring the conducting characteristic of the conducting wire in real time. And further the technical problem that the existing liquid metal CT bulb tube in the prior art does not monitor the leakage condition of the liquid metal in the bearing, threatens the safe use of CT equipment and further influences the diagnosis and treatment of patients is solved.
The relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present disclosure unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
In the description of the present disclosure, it is to be understood that the orientation or positional relationship indicated by the directional terms such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc., are generally based on the orientation or positional relationship shown in the drawings, and are presented only for the convenience of describing and simplifying the disclosure, and in the absence of a contrary indication, these directional terms are not intended to indicate and imply that the device or element being referred to must have a particular orientation or be constructed and operated in a particular orientation, and therefore, should not be taken as limiting the scope of the disclosure; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
The above description is only for the preferred embodiment of the present application, but the scope of the present application is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present application should be covered within the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (9)
1. An X-ray tube comprising: anode target disk (10) and a liquid metal slide bearing (20) arranged on the rear side of the anode target disk (10) and connected to the anode target disk (10), wherein the liquid metal slide bearing (20) comprises a rotary core (210) and a rotary member (220) rotatable relative to the rotary core (210), and at least one leakage prevention structure (230) for collecting leaked liquid metal is arranged on the rotary core (210) and/or the rotary member (220), characterized in that the liquid metal slide bearing (20) further comprises: at least two wires (240), wherein
One end of the lead wire (240) is disposed inside the leakage preventing structure (230), and the other end of the lead wire (240) extends to the outside of the X-ray tube.
2. The X-ray tube according to claim 1, wherein the rotary core (210) is internally provided with a cavity (211), a rear end of the cavity (211) communicates with an outside of the rotary anode target disk, and the rotary core (210) is provided with a through hole (212) communicating an inner space of the leakage preventing structure (230) with the cavity (211), and wherein
The other end of the wire (240) extends to the outside of the rotary anode target disk via the through hole (212) and the cavity (211).
3. The X-ray tube according to claim 1, wherein the leakage prevention structure (230) comprises a liquid blocking ring (213) disposed on the rotary core (210), and the liquid blocking ring (213) comprises a connecting portion (2131) connected with the rotary core (210) and an extending portion (2132) extending forward from the connecting portion (2131), wherein
The inner surface of the extension (2132) facing the rotary core (210) is provided with a first annular groove (21321).
4. The X-ray tube according to claim 3, wherein the one end of the lead wire (240) extends into the first annular groove (21321) and is not connected with the first annular groove (21321).
5. The X-ray tube according to claim 3, wherein the rotation member (220) comprises a rotation flange (221), the rotation flange (221) comprising a first aperture portion (2211) and a second aperture portion (2212), wherein the outer diameter of the second aperture portion (2212) is smaller than the outer diameter of the first aperture portion (2211); and
the extension portion (2132) extends to an end surface (22111) where the first aperture portion (2211) and the second aperture portion (2212) are connected, and the extension portion (2132) is not connected to the end surface (22111), a side of the extension portion (2132) close to the rotary core (210) abuts an outer surface of the second aperture portion (2212), and the second aperture portion (2212) is not connected to the connecting portion (2131).
6. The rotary anode target disk according to claim 1, characterized in that the rotary member (220) comprises a rotary flange (221) and the leakage prevention structure (230) further comprises at least one second annular groove (2213) provided at the inner surface of the rotary flange (221) facing the rotary core (210).
7. The X-ray tube according to claim 6, wherein the one end of the wire (240) extends inside the second annular groove (2213) and is not connected with the second annular groove (2213).
8. The X-ray tube according to claim 1, wherein an outer surface of the wire (240) is provided with an insulating layer (241).
9. A liquid metal plain bearing (20) comprising a rotating core (210) and a rotating member (220) rotatable with respect to said rotating core (210), said rotating core (210) and/or said rotating member (220) being provided with at least one leakage prevention structure (230) for collecting leaked liquid metal, characterized in that it further comprises:
at least two wires (240), wherein one end of the wires (240) is arranged inside the leakage-proof structure (230), and the other end of the wires (240) is led out to the outside of the rotary anode target disk.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011097286.1A CN112309806B (en) | 2020-10-14 | 2020-10-14 | X-ray tube and liquid metal sliding bearing |
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| CN202011097286.1A CN112309806B (en) | 2020-10-14 | 2020-10-14 | X-ray tube and liquid metal sliding bearing |
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| CN112309806B CN112309806B (en) | 2024-04-02 |
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| JP2011249244A (en) * | 2010-05-28 | 2011-12-08 | Toshiba Corp | Rotary anode type x-ray tube |
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| KR20200086565A (en) * | 2019-01-09 | 2020-07-17 | 한국원자력연구원 | Leak detecting device for liquid sodium using graphene oxide and leak detecting system for liquid metal having the same |
| CN111664186A (en) * | 2020-07-06 | 2020-09-15 | 北京智束科技有限公司 | Liquid metal sliding bearing, X-ray tube and CT scanning device |
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